Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
  • H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/317—Re-sealable arrangements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/342—Non-re-sealable arrangements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/342—Non-re-sealable arrangements
  • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/383—Flame arresting or ignition-preventing means
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2220/00—Batteries for particular applications
  • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• the opening/closing member 230 may move toward the inside of the venting path P. Specifically, the opening/closing member 230 may move toward the inside of the venting path P by the pressurizing force of the venting gas discharged through the venting hole 220a provided in the battery module 200 where the thermal event occurs.
• the elastic member 232 may be configured to control the movement of the cover plate 231. That is, the cover plate 231 may move in one direction by the elastic force of the elastic member 232 and the pressurizing force of the venting gas.
• the opening/closing member 230 may be configured to return by the elastic force of the elastic member 232 when the discharge of the venting gas stops, thereby covering the venting hole 220a.
• the pack case 100 may include center beams 140.
• the center beam 140 may be provided to connect the side frames 120 facing each other among the plurality of side frames 120.
• at least one of the center beams 140 may be configured to extend in the left-right direction to connect the right wall and the left wall of the side frames 120.
• the center beams 140 may be configured to partition a plurality of battery modules 200 arranged in multiple rows.
• the center beam 140 may be provided between the battery modules 200 arranged in two rows in the left-right direction. Accordingly, the plurality of battery modules 200 may be provided to be spaced apart from each other by the center beams 140.
• the pack case 100 may include cross-beams 130.
• the cross-beams 130 may be configured to partition the inner space of the pack case 100.
• the cross-beams 130 may be configured to partition the plurality of battery modules 200.
• a plurality of cross-beams 130 may be provided.
• the cross-beam 130 may be configured to connect the side frame 120 and the center beam 140.
• the cross-beam 130 may be configured to connect the left wall and the right wall of the side frame 120 and the center beam 140. Therefore, the cross-beams 130 may be provided between the plurality of battery modules 200 arranged in four rows in the front-back direction to partition the battery modules 200.
• the opening/closing member 230 may include a cover plate 231 and a hinge 233.
• the battery module 200 may be easily closed by the cover plate 231, thereby reliably blocking the reverse inflow of venting gas and/or flame into the battery module 200.
• additional ignition may be suppressed inside the battery module 200.
• the venting gas may quickly move to the venting path P formed in the side frame 120 to be discharged to the outside through the discharge portion 150.
• the heat accumulation inside the battery pack 10 may be effectively resolved.
• the opening/closing member 230 may include a plurality of cover plates 231.
• the plurality of cover plates 231 may be configured to have different lengths from each other.
• a longer cover plate 231 may block the venting gas from passing over the longer cover plate 231.
• the venting gas may be guided to move along the inner surface of the long cover plate 231. Accordingly, the different lengths of the cover plates 231 may more reliably guide the flow of the venting gas or the like toward the side frame 120 inside the venting path P.
• FIG. 9 is a partially cross-sectional view of a battery pack according to an embodiment of the present disclosure
• FIG. 10 is a drawing illustrating an operation in which the opening/closing member is opened when a thermal event occurs in the battery pack in FIG. 9 .
• venting gas may flow into the adjacent battery module 200 through another inlet H.
• the opening/closing member 230 may be configured to at least partially cover the inlet H formed on the adjacent battery module 200 when driven by the venting gas. That is, when the opening/closing member 230 is opened, the opening/closing member 230 may be configured to close the adjacent inlet H by passing through the inlet H.
• the pack case 100 may include a partition 160.
• the partition 160 may be configured to divide the venting path P inside the pack case 100 into a plurality of parts.
• the partition 160 may be configured to divide the venting path P in the horizontal direction.
• a partition hole 160a may be formed in the partition 160.
• the partition hole 160a may be configured to face the inlet H and/or the venting hole 220a.
• the opening/closing member 230 may close the partition hole 160a to prevent the venting gas from flowing into the adjacent battery module 200 through the partition hole 160a. Therefore, the thermal runaway propagation between the battery modules 200 may be more reliably suppressed or blocked.
• the partition 160 when the opening/closing member 230 is opened, the partition 160 may be configured to act as a stopper. To this end, the partition hole 160a may be configured to be smaller than the inlet H. According to the above-implemented configuration of the present disclosure, the opening/closing member 230 may be prevented from moving over the partition 160. In addition, in the case where the opening/closing member 230 includes an elastic member 232, the elastic member 232 may be restricted from being infinitely stretched. As a result, the opening/closing member 230 may be configured to return when the discharge of the venting gas stops, thereby covering the venting hole 220a.
• the partition 160 may be configured to be inclined inside the venting path P.
• the opening/closing member 230 may be configured to have directionality by the partition 160 when fully opened. According to the above-implemented configuration of the present disclosure, the venting gas may be guided in a desired direction by the opening/closing member 230 and the partition 160 and then quickly discharged to the outside of the pack case 100.
• FIG. 13 is a partially cross-sectional view of a battery pack to which a cover member is applied according to an embodiment of the present disclosure.
• FIG. 14 is a drawing illustrating an operation in which the cover member is opened when a thermal event occurs in the battery pack in FIG. 13 .
• FIG. 15 is a drawing illustrating an operation in which the cover member is opened when a thermal event occurs in the battery pack in FIG. 13 according to another embodiment.
• the pack case 100 may further include a cover member 170.
• the cover member 170 may be configured to cover the inlet H.
• the cover member 170 may be configured to open and close the inlet H.
• the cover member 170 may be configured such that the inlet H is opened by the opening/closing member 230 when a thermal event occurs. That is, the cover member 170 may be configured to be opened by the opening/closing member 230 as the opening/closing member 230 is opened.
• the venting hole 220a, the inlet H, and the venting path P may be configured to be in communication.
• the cover member 170 may close the inlet H, thereby preventing the venting gas from flowing into the adjacent other battery module 200 through the inlet H. Therefore, the thermal runaway propagation between the battery modules 200 may be more reliably suppressed or blocked.
• the cover member 170 may be configured to be at least partially movable by the opening/closing member 230.
• the cover member 170 may be configured to move together with the opening/closing member 230 as the opening/closing member 230 is opened.
• the opening/closing member 230 may be configured to push the cover member 170. That is, the opening/closing member 230 may be configured to pressurize the cover member 170. Accordingly, the cover member 170 may be moved entirely, or a part of the opening/closing member 230 may be moved.
• the cover member 170 may move toward the inside of the venting path P. Specifically, the cover member 170 may move into the venting path P by the pressurizing force of the venting gas discharged through the venting hole 220a provided in the battery module 200 where a thermal event occurs.
• the cover member 170 may be configured to be ruptured by the opening/closing member 230. That is, the cover member 170 may be configured to be ruptured by the opening/closing member 230.
• the opening/closing member 230 may be configured to be opened so that the distal end of the opening/closing member 230 ruptures the cover member 170. As a result, the venting gas may flow into the venting path P through the gap generated by the rupture of the cover member 170.
• the cover member 170 may be formed of a thin film that is easily ruptured.
• a notch may be formed in the cover member 170. Therefore, when a thermal event occurs, it may be easily ruptured by the opening/closing member 230 opened by the venting gas.
• FIG. 16 is a schematically perspective view of a vehicle including a battery pack according to an embodiment of the present disclosure.
• a vehicle 20 may include one or more battery packs 10 according to an embodiment of the present disclosure.
• the vehicle 20 according to the present disclosure may be, for example, an electric vehicle, a hybrid vehicle, or a plug-in hybrid vehicle.
• the vehicle 20 includes a four-wheel vehicle and a two-wheel vehicle.
• the vehicle 20 may be operated by power supplied from the battery pack 10 according to an embodiment of the present disclosure.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Battery Mounting, Suspending (AREA)
• Gas Exhaust Devices For Batteries (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=95742670

Family Applications (1)

Country Status (5)

Citations (1)

Family Cites Families (14)

• 2023
  • 2023-11-17 KR KR1020230159746A patent/KR20250072762A/ko active Pending
• 2024
  • 2024-11-12 JP JP2025532564A patent/JP7804835B2/ja active Active
  • 2024-11-12 WO PCT/KR2024/017865 patent/WO2025105808A1/fr active Pending
  • 2024-11-12 EP EP24891754.4A patent/EP4683085A1/fr active Pending
  • 2024-11-12 CN CN202480010572.XA patent/CN120642126A/zh active Pending

Patent Citations (1)

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